2. Lisbon, Portugal
The scenic city of Lisbon is perched on a series of rolling hills cascading down to the grand Tagus River. Pastel-colored buildings decorate Lisbon’s cobblestone streets, as tile-facades are scattered across town. Lisbon is most stunning from its various strategically positioned lookout points or hilltop terraces, where you can observe the many Gothic cathedrals, ancient monasteries and quaint museums.